Tubular base for motors.



.No. 885,231. PATBNTBDMKPR. 21, 1908. J. 15'. DURYEA & w. M. REMINGTON.

TUBULAR BASE FOR MOTORS.

APIELIOATION FILED JULY 16, 1907.

2 SHEETS-SHEET 1.

No. 885,231. i PATENTB'D APR. 21, 1908.

J. P. DURY'EA & WIM. REMINGTON.

TUBULAR BASE FOR MOTORS.

2 SHEETS-SHEET 2;

I III n APPLICATION FILED JULY 15, 1907.

AMES FRANK overlie ANDiWILLInM; M. REMINGTON, I l "mums isnsa ronagoronsg wlthin which, various parts of the mechanism comprised in such plant is'ldcated. As

" generally constructed, this base is'made up of separate compartments,-'one 'for the crank-shaft of the engine, one for the clutch. mechanism, and one for the variable speed transmission mechanism, these being "arranged in the order named,'that part on which the cylinders are'mounted and which contains the crank-shaft being made in-one' piece, and the part containing the clutch mechanism being therefore made in afsep'arate piece and bolted thereto, the transmisslon mechanism compartment being in a casmg sometimes integral with that of the clutch, and sometimes in a separate member bolted thereto. In all cases, however, the clutch mechanism is in the central compartmentof the casing, the whole structure being su ported at opposite ends thereof onl the tu ular construction providing s11 'cient rigidity to make this possible. It is necessary that the parts contained in these various compartments should be easily accessible. Therefore, that part f the base containing the crank-shaft is div ded into two parts in I also necess enin the plane of the crank-shaft,-the lower half of t e casihg being rem0vable,and it is ry to provide means whereby the anism shall bejreadily inspectable on removable, and hence the upper part of this. casing is made removable and fre qu ently both of these casings must be opened at It; eisame time.

The object ofthe clutch mec present invention is to provide a casing construction whereby the ower part of one and the upper part of anothei' contiguous casing bolted to it may be re 'ove'd at the same tlme without weakwhole tubular the central part of the, structure, whereby might sag downward out of line. i

, Specification'of'Letterslfatenti' l Application-medium is, 19a, s r al no. seams,

,ate r ite d April 21,1905. 1.

in Which,'

upper part of the clutch casing being shown I m'dotted lines clutch casing.

in it s separated Referring to these drawings, the complete j base structure of the power plant. consists of which constitutes" a casing for the portion a the crank-shaft of the engine, the cylinders t (not shown) being mounted in inverted position on the top thereof as usual, b indicating that portion of the base in which the clutch c I is inclosed (this being shown in d v and d that portion of the base in which the.

variable speed transmission mechanism e is inclosed such as is employed in gear-driven machines i as distinguished from the chain driven.

I Referring to Fig. 2, it is gine casing, by which term that portion a of the base will be hereinafter referred to, is divided longitudinally or substantially in the planeofthe crank-shaft on the line 9, the meeting edges of the casing on this line being rovided with flanges it, through which bolts l may extend to secure the two halves of the casing together".

That end of the casing a contiguous to the casing 6 containing the clutch, is provided with a flange m as is also the clutch casing, whereby these two casings may be secured together by bolts 0. Thus the upper and lower portions of the casing a, while they are bolted together along their median lines, are separately bolted to the clutch-casing thus permitting the separate I removal of either part thereof from the clutch casing.

In th ing d containing the transmission mechanism is shown as integral with the clutch casing I), though this is an immaterial point and the casing (1 may be bolted to thecasing b, if desired; and in some constructions, it is necessary to make the transmission casing as a separate member in order to conveniently machine it, though the disposition of the mechanism shown herein is such as to render it unnecessary in'this case.

For the purpose of providing suitable I means to support the entire base structure,

i The invention is clearly illustrated in the 1 a in ,Fig. 1, the

relation to the otted lines) e construction shown herein, the casime imea tss view of the casing f representing a universal joint K seen that the enwhen the lower part of the casing a, and the upper part of the clutch casing is removed, the clutch casing b is made with a tubular neck portion p extending unbrokenly entirely around the casing and located, as shown, between the flange m and a like fla ge g, which constitutes the border of the open ing in the upper part of the clutch casing, which opening is closed by a removable section 1' of said casing which is shown in separated relation in said Fig. 2 in dotted lines. This removable section 1" fits closely in said opening in the casing b and is tightly bolted to the latter by bolts 3, and when. so bolted in place, the casing b is practically as strong as though the section 1' were integral therewith.

From the construction of the clutch casing,

above described, it is apparent that even though the lower portion of the casing a be removed, and the section 1' of the clutch casing be removed at the same time, the tubular characteristic of the entire base struc-, ture is maintained, the neck portion p of the clutch casing constituting the connecting element between the upper part of the casing a and the lower part of the clutch casing I), this neck portion 1) being integral with the lower part of the casing b. This neck portion is strengthened by the ribs m and q, the latter merging into a longitudinally disposed rib t which constitutes practically a continuation of the ribsh, of the casin a, and providing also a solid abutment for ,t e flange 12 extend? ing along eachlower edge of the removable section 7' of the clutch casing.

It is thus clear that the capacity or we base as a whole to resistvertical stress in the direction of the arrow, shown in Fi 2, when the lower part of the casing a and t 1e section 1' of the casing b are removed is equal to the resistance to ,fracture of the cross sectional area of the neck 3) at the point w, Fig. 2.

This construction of the base thus makes it possible to remove the entire lower half of the engine casing whereby free access may be had to all crank connections and crank-shaft bearings and permits also the removal of the section 1" of the clutch case at the same time without disconnecting the main elements of the base, whereby possible dis-alinement of the various mechanisms contained in said base mightoccur. Y

The transmission casing is provided with an o ening as usual through which access may e had to the mechanism therein, this opening bein closed by a cover cc.

What we 0 aim is A base-piece for the power plant of a selfpropelled vehicle consisting of tubular sectionssecured together end to end, a portion of the wall of each section being removably secured thereto; that part of the wall of the base-piece lying between two of said removable wall portions being of continuous tubular form in cross section and integral with the section in which it is located.

JAMES FRANK DURYEA. WILLIAM M. REMINGTON. Witnesses:

WM. H. CHAPIN, H. W. BOWEN. 

